Following are the steps to build KitCAT from source:

1. Check out latest versions of ECharts, EChartsJainSip and EChartsSiptest
   svn co https://echarts.svn.sourceforge.net/svnroot/echarts/trunk/EChartsCPL EChartsCPL
   svn co https://echarts.svn.sourceforge.net/svnroot/echarts/trunk/EChartsJainSip EChartsJainSip
   svn co https://echarts.svn.sourceforge.net/svnroot/echarts/trunk/EChartsSipTest EChartsSipTest
2. Build EChartsCPL
   cd EChartsCPL; ant all
3. Build EChartsJainSip
   cd EChartsJainSip
   Copy jain-sip-sdp-xxx.jar and log4j-xxx.jar under lib/ (if you have a current KitCAT distribution you can get these files from under the lib/ directory in the distribution)
   ant jar
4. Build EChartsSipTest
   cd EChartsSipTest
   Copy jain-sip-sdp-xxx.jar, log4j-xxx.jar, junit-xxx.jar, hamcrest-xxx.jar under lib/ (if you have a current KitCAT distribution you can get these files from under the lib/ directory in the distribution)
   ant dist
5. KitCAT_xxx-beta.zip is the distribution file that is generated under the EChartsSipTest directory

Problems have been observed while running 'ant dist' from a Windows command line environment. I have been able to get around this by doing the following steps:

1. Make sure the path to javadoc.exe is in your PATH environment variable
2. During the build, a window pops up intermittently with the following message - "Error while setting up environment for the application. Choose 'Close' to terminate the application". Ignoring this error and closing the pop-up window does not seem to have any impact on the build.